Singing cashier serenades the internet

NEW YORK (KGO) -- A cashier just received the surprise of a lifetime for singing while he works.

A video posted on Facebook by a customer showcases Lucas Holliday singing a beautiful rendition of Maxwell's hit song "Ascension."

The video has nearly half a million views.

Monday on "Good Morning America," the singing cashier got a special message from Maxwell himself.

"You sound unbelievable," the singer said. "I wanted to personally invite you on stage at my Detroit show, this Friday. Hopefully you'll join us and congratulations. You have a sick, amazing voice."Holliday was shocked by the offer.

He happily accepted the singer's invitation before breaking into song live on "GMA."

Holliday's funk band 'Tell Yo Mama' may be playing an upcoming wedding thanks to the success of his viral video.